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Home >> GMC >> 2004 >> Canyon 2D Pickup, 2.8 8, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.8L (Introduction) >> Repair Instructions >> Ignition Coil(s) Replacement >> Removal Procedure

Removal Procedure

  1. Remove the air cleaner resonator and outlet duct. Refer to Air Cleaner Resonator and Outlet Duct Replacement .
  2. Disconnect the engine wiring harness electrical connector (2) from the oil pressure sensor (1).
  3. Disconnect the engine wiring harness retainer (3) from the oil filter adapter (4).
    4. Fig 1: View Of Engine Wiring Harness At Oil Pressure Sensor & Oil Filter Adapter
    GM1350709Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the engine wiring harness retainers (1) from the power steering pump (2).
    5. Fig 2: View Of Power Steering Pump Engine Wiring Harness Retainers
    GM1350723Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the engine wiring harness electrical connectors (1, 4) from the following:
    • The camshaft position (CMP) sensor (5)
    • The camshaft position (CMP) actuator solenoid valve (6)
    6. Fig 3: View Of CMP Sensor Connector, Exhaust Camshaft Actuator Connector & Engine Wiring Harness Retainer
    GM1350714Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the engine wiring harness retainer (2) from the camshaft cover (3).
  7. Disconnect the engine wiring harness electrical connectors from the following:
    • The engine coolant temperature (ECT) sensor (1)
    • The fuel injector harness (2)
    • The ignition coils (4)
    • The heated oxygen sensor (HO2S) (5)
    8. Fig 4: View Of ECT Sensor, Fuel Injector, Ignition Coil & HO2S Engine Wiring Harness Electrical Connectors
    GM1350694Courtesy of GENERAL MOTORS CORP.
  8. Carefully disengage the engine wiring harness conduit from the camshaft cover, and position aside.
    9. Fig 5: View Of Engine Wiring Harness Conduit
    GM1350728Courtesy of GENERAL MOTORS CORP.
  9. Remove the ignition coil bolts.
  10. Remove the ignition coils from the camshaft cover.
    11. Fig 6: View Of Ignition Coil
    GM953949Courtesy of GENERAL MOTORS CORP.
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